Summer Countdown 2026 - How Many Days Until Summer?
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Our summer countdown timer shows exactly how many days, hours, minutes, and seconds until the first day of summer on Sunday, June 21, 2026. The summer solstice marks the official start of summer in the Northern Hemisphere and is the longest day of the year!
The summer solstice occurs when the Earth's axial tilt is most inclined toward the sun, resulting in the longest day and shortest night of the year. In the Northern Hemisphere, this happens around June 20-22. It marks the astronomical beginning of summer and has been celebrated by cultures worldwide for thousands of years.
While the Northern Hemisphere enjoys summer from June to September, the Southern Hemisphere experiences summer from December to March. The summer solstice has been celebrated since ancient times, with famous monuments like Stonehenge aligned with the solstice sunrise.